Switching on a cog - once!

John A. Zoidberg · 2010-10-26 04:56

Hello there,

I've a bit of problem with enabling a cog, which is shown in the code space below:

some program loop here:

repeat
|-- ...
|-- ...
|-- IF (alarm)
     |-- coginit(3, anotherCog, @stack3)
|-- ...

However, the program works, but it didn't initialize the cog once, but a lot of times according to the loop, causing the system to stutter.

How can I turn the cog on once, and latch it? I know it could be a basic programming question, but I couldn't figure this one out.

blittled · 2010-10-26 05:11

There isn't much detail to go by here. Did you set alarm to false after the coginit line? If you don't the coginit will launch keep launching cogs while alarm = true which may be causing the stutter.

Heater. · 2010-10-26 05:37

How about something like:

VAR
  byte alarm
  byte alarmCog
  long stack3[20]

PUB start

repeat
'...
'...
    if alarm
        if alarmCog == 0
            alarmCog := cognew(anotherCog, @stack3) + 1
'...
'...

Generally using coginit is frowned upon.

John A. Zoidberg · 2010-10-26 06:33

Danke! Thanks for the help. Now I can hook it up to the relay or something for my application.

Switching on a cog - once!

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